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  Magnetic Sensor   is a device that converts the magnetic properties of sensitive elements caused by external factors such as magnetic fields, current, stress and strain, temperature, and light into electrical signals. In this way, it detects corresponding physical quantities. Magnetic sensors are widely used in modern industrial and electronic products to measure physical parameters such as current, position, and direction by inducing magnetic field strength. In the prior art, there are many different types of sensors for measuring magnetic fields and other parameters. Magnetic sensors are devices that detect changes in the magnetic properties of sensitive components caused by external factors such as magnetic fields, current, stress and strain, temperature, and light, and convert them into electrical signals. There are three types of magnetic sensors: compass, magnetic field sensor, and position sensor. Compass: The earth generates magnetic fields. If you can measure the ma...

  Introduction of   China Wiegand Sensor : 1. Input power: no power required 2. Output pulse amplitude: 3.0V minimum @ 85 Gauss 3. Output pulse width: 10μS @ 1 volt typical 4. Working frequency: 0HKZ to 20KHZ 5. Working temperature: -40 ° C to + 125 ° C Features of Wiegand sensors: China Wiegand Sensor First, the Wiegand sensor is a passive device, and no external power supply is required during operation. Second, the magnetic pole trigger works, the polarity of the trigger magnetic field changes for one week, the Wiegand sensor outputs a pair of positive and negative pulse signals synchronously, the amplitude is greater than 1V; Third, the output signal amplitude has nothing to do with the changing speed of the magnetic field, and can realize "zero speed" sensing. Fourth, non-contact, corrosion resistance, moisture resistance, service life greater than 2 billion times. Fifth, Wiegand output signals can be transmitted remotely using telephone lines and coaxial lines. Use of W...

  In recent years, with the development of China's economy, China's bridge construction has ushered in an unprecedented development speed, providing a solid transportation infrastructure for economic construction. With the improvement of bridge construction and transportation systems, bridges have also been over-managed from large-scale construction to bridge monitoring and evaluation. As time goes by, more and more bridges will reach or approach the service life, and the heavy pressure of vehicles will be accepted over the years, causing structural damage and aging of the bridges, especially for large bridges. The loss of recovery. Therefore, health and safety monitoring of bridges is essential. In the past, the monitoring of the health and safety of bridges was mainly based on manual inspections. Although it was supplemented by corresponding testing equipment, it was difficult to monitor the bridges in real time and continuously, and the monitoring methods were not intelligen...

  The features of   China Hall Sensor   include: miniaturization, digitization, intelligence, multi-functionality, systematization, and networking. It not only promotes the transformation and upgrading of traditional industries, but also may establish new industries, which will become new in the 21st century. The point of economic growth. Miniaturization is based on microelectromechanical systems (MEMS) technology and has been successfully applied to silicon devices as silicon pressure sensors. Next, let's share with you how to judge the quality of the linear hall sensor. Linear Hall Sensor 1.Linear range The  Linear Hall Sensor 's linear range is the range in which the output is proportional to the input. In theory, within this range, the sensitivity remains constant. The wider the linear range of the displacement sensor, the larger the range and the certain measurement accuracy. When selecting the displacement sensor, when the type of the displacement sensor is det...

  The resolution of the   Linear Hall Sensor   is essentially how much displacement can produce an identifiable electrical signal. For example, a displacement sensor measures the displacement of an object. If the displacement is below one micron, the probe does not react. If the displacement exceeds one micron, it will change. The output of the probe, then say that this micron is the resolution of the probe. Linear Hall Sensor Accuracy has a lot of understanding, it may refer to absolute error or linearity. To put it bluntly, is your ruler accurate or not. One micrometer you measured, how much different from a micrometer of the metrology standard. Others will say repeatability as precision. In fact, he said that under the same measurement conditions, only the probe is removed and then reset to the same measurement point, and the measurement results are drifted. Or do not remove the probe, just look at it after a while, whether the measurement results drift. The relationsh...

  Linear Hall Sensor   causes errors 　　1.Zero error 　　The zero error is caused by the unequal potential. The main reason for generating the unequal potential is that the two Hall electrodes are not mounted on the same equipotential surface; the unevenness of the material causes uneven distribution of resistance, poor contact of the control electrodes, and uneven current distribution. 　　2. Parasitic DC potential error Linear Hall Sensor 　　The main reason for the parasitic DC potential is that the control electrode is in poor contact with the Hall element, forming a non-ohmic contact. The two Hall electrodes are asymmetrical in size, so that the heat capacity of the two electrodes is different, the heat dissipation state is different, and the temperature difference potential between the two electrodes occurs. , causing the Hall element to produce temperature drift. 　　3. Inductive zero potential error 　　When the Hall element operates in an AC or pulsating magnetic field, even if ...

  　Displacement sensor, also known as linear sensor, is a linear device belonging to metal induction. The function of the sensor is to convert various measured physical quantities into electricity. In the production process, the measurement of displacement is generally divided into two types: physical size measurement and mechanical displacement. According to the form of the measured variable transformation, the displacement sensor can be divided into analog and digital. The analog type can be divided into two types: physical type and structural type. Common displacement sensors are mostly analog structures, including potentiometer displacement sensors, inductive displacement sensors, self-aligning machines, capacitive displacement sensors, eddy current displacement sensors, and   Linear Hall Sensors . An important advantage of digital displacement sensors is the ease with which signals can be sent directly to a computer system. Such sensors are rapidly evolving and are becomi...